This signature file may be used to cryptographically verify file integrity, like this:: $ gpg --keyserver hkp://keyserver.ubuntu.com --recv-keys 0xA16EB94D $ gpg --list-keys 0xA16EB94D pub 2048R/A16EB94D 2008-08-15 [expires: 2023-08-12] uid Turnkey Linux Release Key $ gpg --verify turnkey-nginx-php-fastcgi-12.0-squeeze-x86-openstack.tar.gz.sig gpg: Signature made Tue Aug 21 16:08:23 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum 40ea3774c11a1e3e12f3ef6c54110d30f2f49cdd * md5sum 75569947a9ccb4ab14ea4e933592b1f5 You can calculate these on your end and compare to check for errors, but cryptographic verification is recommended for security reasons. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) iQEcBAABAgAGBQJQM7JsAAoJEIXCXpWhbrlNKWgH/3d64N5ucYWIwfpT4/jv5sHk 9g59wCBX67mHDjOi/HhmdNXDIK95RQLLV1zzFKtEbNZ0o08Hb0Woo2wba6hBI8rc h3TCHxmzaO85v/jEcNO4LmZMjcpkpnJvIysYtLnQWwC+tkX/hoF599FHnIj52YkB 5SN/5BUutjHeW5zFdzlui+d7zyZU5XdA2gP508HlG28S4qMO7DAehG83uSeNk0sY a3oyGoOglr6SOY8cnxUOmXmMnuQg/OF7UgWvvLiHuruWxXqGzxXnaipDVulup28T 4qr/PWjxTwlMwQfEwwTQ/kVbJjunAE4FiqOIBoCx81T9vAKx1AXBUWiA/w+yJ10= =d8qa -----END PGP SIGNATURE-----